摘要
辽河大桥39#主塔桩基础为大直径深水超长群桩基础,对全部39根桩进行了桩底后压浆,有效地提高了桩基承载力和整体刚度,减少了基础的不均匀沉降。重点介绍大规模群桩基础通过桩底压浆提高承载力的机理、压浆工艺及压浆效果。
The foundation of 39# main tower pile of bridge over Liaohe River is one of pile group with large diameter, in deep water and overlong. After grouting the foots of all 39 piles is carried out, effectively enhancing the bearing capacity of pile foundation and its integral rigidity and reducing the inhomogeneous settlement of foundation. The paper emphatically introduces that large - scale pile group foundation lifts mechanism of bearing capacy through pile foot grouting;grouting technology and effects.
出处
《北方交通》
2009年第7期62-65,共4页
Northern Communications
关键词
辽河大桥
群桩基础
桩底压浆
承载力
机理
效果
Bridge over Liaohe River
Foundation of pile group
Pile foot grouting
Bearing capacity
Mechanism
Eftects
